Article ; Online: The petrochemistry of Jake_M: a martian mugearite.
2013 Volume 341, Issue 6153, Page(s) 1239463
Abstract: Jake_M," the first rock analyzed by the Alpha Particle X-ray Spectrometer instrument ... alkaline (>15% normative nepheline) and relatively fractionated. Jake_M is compositionally similar ... with these comparable terrestrial rocks, Jake_M could have been produced by extensive fractional crystallization ...
Abstract | "Jake_M," the first rock analyzed by the Alpha Particle X-ray Spectrometer instrument on the Curiosity rover, differs substantially in chemical composition from other known martian igneous rocks: It is alkaline (>15% normative nepheline) and relatively fractionated. Jake_M is compositionally similar to terrestrial mugearites, a rock type typically found at ocean islands and continental rifts. By analogy with these comparable terrestrial rocks, Jake_M could have been produced by extensive fractional crystallization of a primary alkaline or transitional magma at elevated pressure, with or without elevated water contents. The discovery of Jake_M suggests that alkaline magmas may be more abundant on Mars than on Earth and that Curiosity could encounter even more fractionated alkaline rocks (for example, phonolites and trachytes). |
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Language | English |
Publishing date | 2013-09-27 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. |
ZDB-ID | 128410-1 |
ISSN | 1095-9203 ; 0036-8075 |
ISSN (online) | 1095-9203 |
ISSN | 0036-8075 |
DOI | 10.1126/science.1239463 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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